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General

NameVivo X21iSamsung Galaxy Watch-
ModelX21i Galaxy Watch-
Price-Tk. 27,990-

Network

Network TypeGSM / CDMA / HSPA / LTE GSM / HSPA / LTE-
Network 2GGSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA GSM 850 / 900 / 1800 / 1900-
Network 3GHSDPA 850 / 900 / 2100 HSDPA 900 / 2100-
Network 4GLTE band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 38(2600), 39(1900), 40(2300), 41(2500)LTE-
Network SpeedHSPA, LTEHSPA, LTE-
Network GPRSYesYes-
Network EDGEYesYes-

Display

Display TypeSuper AMOLED capacitive touchscreen, 16M Colors Super AMOLED capacitive touchscreen, 16M Colors -
Display Size6.28 inches, 98.4 cm2 (~85.0% screen-to-body ratio 1.3 inches, 5.5 cm2 (~24.2% screen-to-body ratio)-
Display Resolution1080 x 2280 pixels, 19:9 ratio 360 x 360 pixels, 1:1 ratio-
Display MultitouchYes - Funtouch OS 4.0Yes-
Display Density402 ppi density 392 ppi density-
Display Screen Protection-Corning Gorilla Glass DX+ - Always-on display - Rotating bezel-

Camera

Primary Camera12MP (f/1.8, 1/2.5No-
Secondary Camera24MP--
Camera FeaturesGeo-tagging, Touch focus, Face detection, HDR, panorama--
Video[email protected]--

Body

Body Dimensions154.4 x 75 x 7 mm (6.08 x 2.95 x 0.28 in)49 x 46 x 13 mm (1.93 x 1.81 x 0.51 in)-
Body Weight159 g (5.61 oz) 63 g (2.22 oz)-
Body ColorBlack, Aurora White, Ruby Red Silver, Midnight Black, Rose Gold-
Body Build- Stainless Steel 316L-

Launch

Launch AnnouncementMay, 2018August, 2018-
Launch DateRelease May 19th, 2018Release August, 2018-

Platform

Operating SystemAndroid 8.1 Oreo Tizen-based wearable OS 4.0 -
CPUOcta-core (4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53) Dual-core 1.15 GHz-
GPUMali-G72 MP3--
ChipsetMediatek MT6771 Helio P60 Exynos 9110-

Memory

Memory Internal64GB, 128GB 4 GB-
Memory ExternalmicroSD, up to 256GB (uses SIM 2 slot) No-
Ram4GB, 6GB 1.5 GB LTE, 768 MB BTT-

Battery

Battery TypeNon-removable Li-Ion Battery Non-removable Li-Ion Battery -
Battery Capacity3425 mAh 472 mAh Battery-
Battery Stand by- Up to 72 h (mixed usage)-

Multimedia

Fm RadioYesNo-

Sound

AudioVibration, MP3, WAV Ringtones Vibration, MP3, WAV Ringtones-
LoudspeakerYesYes-
3.5mm JackYes - 32-bit/192kHz audio - Active noise cancellation with dedicated micNo-

Connectivity

WiFiWi-Fi 802.11 a/b/g/n/ac, dual-band, WiFi Direct, Hotspot Wi-Fi 802.11 b/g/n-
Bluetooth5.0, A2DP, LE 4.2, A2DP, LE-
USBmicroUSB 2.0, USB On-The-GoNo-
GPSYes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS-

Features

SensorsFingerprint-rear-mounted, accelerometer, proximity, compass Accelerometer, gyro, heart rate, barometer-
MessagingSMS(threaded view), MMS, Email, Push Email SMS(threaded view), Email, IM-
BrowserHTML5No-
JavaNoNo-

Other

Made ByChinaKoria-
Other FeaturesFast battery charging, MP4/H.264 player, MP3/WAV/eAAC+/FLAC player, Document viewer, Photo/video editor WPC wireless charging
S-Voice natural language commands and dictation
MP3/M4A/AAC/WAV player
Photo viewer
Voice memo/dial/commands
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